Bromothymol Blue 0.04% pH Indicator – 500ml - High-Purity Lab-Grade Powder – Scientific & Educational Use – Reliable Acid-Base Detection

Great product, arrived well packaged and no leaks. I bought this for a demo in my high school science class and it does it exactly what it should. Excellent pH indicator for a decent price.

I ordered this bottle for a lab activity for my class and was happy to get the product on time. I ordered two bottles and both came with the cap cracked. Fortunately they come sealed, so no product was spilled and I was able to use the cap of my old bottle to replace the cap of the bottle that I’m currently using. The caps may have cracked during transport, so I recommend that they be packaged properly to prevent this. The one bottle that I opened and started using worked fine for my lab activity.